‘Catastrophe Fails to Materialize’: Global polar bear population size INCREASES
Polar bear numbers have risen since 2005, no matter how you look at it:
USGS estimated 24,500 (average) polar bears in 2005.
IUCN estimated 26,500 (average of 22,000-31,000) in 2015
(assessment completed in July, released in November).
Subpopulation surveys completed or reported after July 2015 (Baffin Bay, Kane Basin, Barents Sea) added ~2,000 bears.